• November 29, 2023

Failed to calculate the performance index – what should I do?

“Failed to calculate the Windows performance index for this system” – a message that occurs to users of the “7” when they try to determine the performance index of their computer. In today’s article, we will see with you why this message appears and how to get rid of it.

Reasons for “Failed to calculate the performance index”

  • Battery operation / energy saving mode.
  • Insufficient disk space.
  • The performance index calculation procedure has already been started.
  • The calculation procedure was mistakenly blocked by the antivirus.

Solution “Failed to calculate the performance index”

Could not calculate performance index

Solution # 1 Connecting the laptop to the electr. network / power plan change

When switching to an economical power supply scheme, the calculation of the system performance index becomes impossible. Laptops, as it should be, automatically go into power saving mode when you unplug them from the power supply. Make sure you are connected to an electrical outlet and set up a balanced or high-performance power scheme.

Solution # 2 Free up disk space

The message “Failed to calculate the performance index” can occur due to insufficient free disk space. The fact is that when such a process starts, Windows creates a small text file on the disk, and if there is not enough space, an error occurs.

Solution # 3 Disable antivirus

That’s right, sometimes the installed antivirus software can cause such a problem. Try disabling your antivirus and then running the performance index calculation process again. Also try deactivating Windows System Defender.

Solution # 4 Reinstalling the video driver

Did you get the “Failed to calculate the performance index” error immediately after installing the driver for the video card? Then you need to deal with reinstalling this driver, because this may be the whole problem. To reinstall the video driver, do the following:

  • open Device Manager (Win + R -> devmgmt.msc);
  • open the “Video adapters” section;
  • right-click on the name of your video card and select “Remove device”;
  • restart your PC;
  • download the latest version of the video driver from the official website of the GPU manufacturer;
  • run the driver installation and follow the instructions on the screen;
  • check for a problem with the index calculation.

Solution # 5 Updating various codecs

Some users claim that they managed to get rid of this problem by updating various codecs on their system. Open the Task Manager and see what codecs we might need. Then we go to the browser and start looking for the required codec packages. We install them and check if the alarm message disappears.

Solution # 6 Update Windows OS

There are also claims on the Internet that you can get rid of the message “Failed to calculate the performance index” by installing all available updates for your Windows 7. Go to the Update Center and start the automatic update process.

Hopefully this article was helpful to you!

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